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IRISSAK [1]
3 years ago
11

If 4x^2 - 100 = 0, what are the roots of the equation?

Mathematics
2 answers:
drek231 [11]3 years ago
8 0
The roots to this equation i s either positive or negative five
BartSMP [9]3 years ago
4 0
Positive or negative 5
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Which quadrant does 7 pi divided by 8 fall into
Svet_ta [14]

Answer:

Quadrant 2

Step-by-step explanation:

Convert radians to degrees

7pi/8(180/pi)

1260/8=157.5

157.5 degrees would fall into quadrant 2

6 0
4 years ago
How many 2-digit numbers are among the terms of the arithmetic sequence 2, 7, 12, 17, ...?
Snowcat [4.5K]

Answer:

20

Step-by-step explanation:

It seems like the rule of this sequence is to add 5 (since 2 + 5 = 7 and 7 + 5 = 12). We already are given that we have 2 2-digit numbers (12 and 17) so let's see if there are any more. The sequence continues to 22, 27, 32, 37, 42, 47, ..., 92, 97. We need to count how many numbers are in the list 12, 17 ... 92, 97. To do this, let's add 3 to every term in the list to get 15, 20, ... 95, 100. Since the list is now full of multiples of 5 we can divide the list by 5 to get 3, 4, ... 19, 20 and then subtract 2 to get 1, 2, ... 17, 18 which means that there are 18 2-digit numbers.

8 0
4 years ago
Find the mode of these numbers: <br> 3,2,5,2,2,5,4,3,2,5,4
Gwar [14]
Hello!
the mode means the most common
so i will list the numbers and how many times they are shown
3-2
2-4
5-3
4-2
meaning that 2 is the most seen number
4 0
3 years ago
Read 2 more answers
If a triangle has angles measuring 15 degrees and 45 degrees what is the measure of the triangle's third angle?
enot [183]

Answer:

120 degrees

Step-by-step explanation:

Remember that the interior angles of a triangle always add up to 180 degrees. We know that two of the angles (45 and 15) add up to 60 degrees. Now we just have to subtract the 60 degrees we have from the 180 degree total in order to get the measure of the missing angle.

180 - 60 = 120

Therefore... the answer is 120 degrees

3 0
3 years ago
Find the perimeter of the given triangle
trasher [3.6K]

Here it is given that the triangles ABP and DCR are similars, therefore we use the ratio rule which states that

corresponding sides of similar triangles are in same proprtion .

\frac{AB}{DC} = \frac{BP}{CR}

that gives

7/10 = BP/11

7*11=10BP

BP=7.7

Again using the ratio rule

\frac{AB}{DC} = \frac{AP}{DR}

7/10 = AP/6

42 = 10AP

AP = 4.2

Perimeter= AB+BP+AP = 7+7.7+4.2 = 18.9

Correct option is A.

8 0
3 years ago
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